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WIRELESS MADE SIMPLE
KH SERIES TRANSMITTER / ENCODER DATA GUIDE
DESCRIPTION
The KH Series is ideally suited for volume use
in OEM applications such as remote control and
command, and keyless entry. Housed in a
compact SMD package, it combines a highly-
optimized RF transmitter with an on-board
encoder. When paired with a matching KH
Series receiver / decoder module, a reliable
wireless link is formed, capable of transferring
the status of 8 parallel inputs over distances in
excess of 300 feet. Ten tri-state address lines
10
provide 59,049 (3
) addresses for security and
uniqueness. No external RF components are
required
(except
an
antenna),
integration straightforward.
FEATURES
Low cost
On-board encoder
8 parallel binary inputs
10
3
addresses for security and
uniqueness
No external RF components
required
APPLICATIONS INCLUDE
Remote Control / Command
Keyless Entry
Garage / Gate Openers
Lighting Control
Call Systems
Home / Industrial Automation
Fire / Security Alarms
Remote Status Monitoring
Wire Elimination
TXE-315-KH
TXE-418-KH
TXE-433-KH
®
1.220"
RF TRANSMITTER/ENCODER
0.630"
TXE-418-KH
LOT 2000
0.180"
making
Figure 1: Package Dimensions
Ultra-low power consumption
Compact SMD package
Stable SAW-based architecture
Adjustable output power
Transmit enable line
No production tuning
ORDERING INFORMATION
PART #
DESCRIPTION
TXE-315-KH
Transmitter 315MHz
TXE-418-KH
Transmitter 418MHz
TXE-433-KH
Transmitter 433MHz
RXD-315-KH
Receiver 315MHz
RXD-418-KH
Receiver 418MHz
RXD-433-KH
Receiver 433MHz
EVAL-***-KH
Basic Evaluation Kit
*** = 315, 418 (Standard), 433.92MHz.
Transmitters are supplied in tubes of 20 pcs.
Revised 10/12/06
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Table of Contents
Related Manuals for Linx TXE-315-KH
Summary of Contents for Linx TXE-315-KH
- Page 1 TXE-315-KH TXE-418-KH TXE-433-KH ® WIRELESS MADE SIMPLE KH SERIES TRANSMITTER / ENCODER DATA GUIDE DESCRIPTION The KH Series is ideally suited for volume use 1.220" in OEM applications such as remote control and command, and keyless entry. Housed in a compact SMD package, it combines a highly- RF TRANSMITTER/ENCODER optimized RF transmitter with an on-board...
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Page 2: Electrical Specifications
ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Designation Min. Typical Max. Units Notes Supply Voltage V -0.3 +6.0 POWER SUPPLY Any Input or Output Pin -0.3 Operating Voltage – – Operating Temperature °C Supply Current – – Storage Temperature °C Power-Down Current –... - Page 3 LADJ/GND Surface Acoustic Wave (SAW) based transmitter with an on-board encoder. When combined with a Linx KH Series receiver / decoder, a highly reliable RF link capable of transferring control or command data over line-of-sight distances in excess of 300 feet is formed. The module accepts up to 8 parallel inputs, such as switches or contact closures, and provides ten tri-state address lines for security and creation of 59,049 (310) unique transmitter / receiver relationships.
- Page 4 ENCODER OPERATION POWER SUPPLY REQUIREMENTS The KH Series transmitter internally utilizes The module does not have an internal voltage Vcc TO Power On the HT640 encoder from Holtek. The regulator; therefore it requires a clean, well-regulated MODULE encoder begins a three-word transmission power source.
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Page 5: Interference Considerations
Multipath is a term used to refer to the signal cancellation effects The KH Series transmitter / encoder module is also suitable for use with the Linx that occur when RF waves arrive at the receiver in different phase relationships. -
Page 6: Board Layout Guidelines
This is a critical factor, especially in high- Linx in designing the modules, integrating them is very straightforward. Despite frequency products like Linx RF modules, because the trace leading to the this ease of application, it is still necessary to maintain respect for the RF stage module’s antenna can effectively contribute to the length of the antenna,... - Page 7 Absolute Maximum Solder Times Washability The modules are wash resistant, but are not hermetically sealed. Linx Hand-Solder Temp. TX +225°C for 10 Seconds recommends wash-free manufacturing; however, the modules can be subjected to a wash cycle provided that a drying time is allowed prior to applying electrical Hand-Solder Temp.
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Page 8: Antenna Considerations
FCC compliance. and the corresponding sacrifice in performance accepted. Linx transmitter modules typically have an output power that is slightly higher 3. If an internal antenna is to be used, keep it away from other metal components, than the legal limits. - Page 9 There are literally hundreds of antenna styles and variations that can be ® employed with Linx RF modules. Following is a brief discussion of the styles most commonly utilized. Additional antenna information can be found in Linx Application Notes AN-00100, AN-00140, and AN-00500. Linx antennas and connectors offer outstanding performance at a low price.
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Page 10: Legal Considerations
AN-00150 Use and Design of T-Attenuation Pads All Linx modules are designed with the approval process in mind and thus much of the AN-00160 Considerations For Sending Data Over a Wireless Link frustration that is typically experienced with a discrete design is eliminated. Approval is... - Page 11 Data Guide is believed to be accurate as of the time of publication. Specifications are based on representative lot samples. Values may vary from lot to lot and are not guaranteed. Linx Technologies makes no guarantee, warranty, or representation regarding the suitability or legality of any product for use in a specific application.
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